From: Arjan van de Ven <arjan@infradead.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: Mikhail Kshevetskiy <mikhail.kshevetskiy@gmail.com>,
Andi Kleen <andi@firstfloor.org>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: x86_64 and AMD with C1E
Date: Mon, 1 Oct 2007 07:06:36 -0700 [thread overview]
Message-ID: <20071001070636.2d8e0f9f@laptopd505.fenrus.org> (raw)
In-Reply-To: <20071001130953.GC17357@one.firstfloor.org>
On Mon, 1 Oct 2007 15:09:53 +0200
> There is normally a threshold above which you don't save significantly
> more power by doing less timer interrupts. You can test this
> by doing the CONFIG_HZ=100 above.
however the point you're describing tends to more be around 25ms to
50ms.... HZ=100 is only a first rough test (and HZ=100 does have
userspace visibility, multimedia playback suffers due to the decreased
accuracy)
next prev parent reply other threads:[~2007-10-01 14:08 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-01 6:15 Mikhail Kshevetskiy
2007-10-01 9:33 ` Andi Kleen
[not found] ` <b70f2f960710010546k4658aa1ay466f243ac707c989@mail.gmail.com>
2007-10-01 12:50 ` Fwd: " Mikhail Kshevetskiy
2007-10-01 14:14 ` Thomas Gleixner
2007-10-01 14:32 ` Andi Kleen
2007-10-01 14:59 ` Thomas Gleixner
2007-10-01 15:21 ` Andi Kleen
2007-10-01 16:44 ` Thomas Gleixner
2007-10-01 17:56 ` Chuck Ebbert
2007-10-01 14:33 ` Mikhail Kshevetskiy
2007-10-01 13:09 ` Andi Kleen
2007-10-01 14:06 ` Arjan van de Ven [this message]
2007-10-01 14:40 ` Mikhail Kshevetskiy
2007-10-19 16:39 ` Chuck Ebbert
2007-10-24 21:26 ` Mikhail Kshevetskiy
2007-10-24 21:41 ` Chuck Ebbert
2007-10-24 22:12 ` Thomas Gleixner
2007-10-24 22:42 ` Mikhail Kshevetskiy
2007-12-15 11:06 ` Thomas Gleixner
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